Method and apparatus for monitoring armature position in direct-current solenoids
Patent
·
OSTI ID:415767
A method for determining the position of an armature of a dc-powered solenoid is disclosed. Electrical circuitry is provided to introduce a small alternating current flow through the coil. As a result, the impedance and resistance of the solenoid coil can be measured to provide information indicative of the armature`s position. 5 figs.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
- Patent Number(s):
- US 5,583,434/A/
- Application Number:
- PAN: 8-093,846
- OSTI ID:
- 415767
- Resource Relation:
- Other Information: PBD: 10 Dec 1996
- Country of Publication:
- United States
- Language:
- English
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